CVE-2019-20897 : The avatar upload feature in affected versions of Atlassian Jira Server and Data

The avatar upload feature in affected versions of Atlassian Jira Server and Data Center allows remote attackers to achieve Denial of Service via a crafted PNG file. The affected versions are before version 8.5.4, from version 8.6.0 before 8.6.2, and from version 8.7.0 before 8.7.1.

Published 2020-07-13 01:15:11

Updated 2022-03-30 13:21:19

Source Atlassian

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2019-20897

Atlassian » Jira
Versions before (<) 8.5.4
cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*
Matching versions
Atlassian » Jira Software Data Center
Versions before (<) 8.5.4
cpe:2.3:a:atlassian:jira_software_data_center:*:*:*:*:*:*:*:*
Matching versions
Atlassian » Jira Server
Versions from including (>=) 8.6.0 and before (<) 8.6.2
cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*
Matching versions
Atlassian » Jira Server
Versions from including (>=) 8.7.0 and before (<) 8.7.1
cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*
Matching versions
Atlassian » Jira Data Center
Versions from including (>=) 8.7.0 and before (<) 8.7.1
cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*
Matching versions
Atlassian » Jira Data Center
Versions from including (>=) 8.6.0 and before (<) 8.6.2
cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*
Matching versions

Threat overview for CVE-2019-20897

Top countries where our scanners detected CVE-2019-20897

Top open port discovered on systems with this issue 80

IPs affected by CVE-2019-20897 4,164

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2019-20897!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2019-20897

EPSS FAQ

0.85%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 74 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-20897

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.0	MEDIUM	AV:N/AC:L/Au:S/C:N/I:N/A:P	8.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	2.8	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2019-20897

CWE-434 Unrestricted Upload of File with Dangerous Type

The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2019-20897

https://jira.atlassian.com/browse/JRASERVER-70813

[JRASERVER-70813] DoS in avatar upload via crafted PNG file - CVE-2019-20897 - Create and track feature requests for Atlassian products.
Patch;Vendor Advisory